#ifndef __KERNEL_GLOBAL_H
#define __KERNEL_GLOBAL_H
#include "stdint.h"

#define RPL0 0
#define RPL1 1
#define RPL2 2
#define RPL3 3

#define TI_GDT 0
#define TI_LDT 1

#define SELECTOR_K_CODE ( (1 << 3) + (TI_GDT << 2) + RPL0 )
#define SELECTOR_K_DATA ( (2 << 3) + (TI_GDT << 2) + RPL0 )
#define SELECTOR_K_STACK SELECTOR_K_DATA
#define SELECTOR_K_GS ( (3 << 3) + (TI_GDT << 2) + RPL0 )

/* IDT描述符属性 */
#define IDT_DESC_P 1
#define IDT_DESC_DPL0 0
#define IDT_DESC_DPL3 3
#define IDT_DESC_32_TYPE 0xE
#define IDT_DESC_16_TYPE 0x6
#define IDT_DESC_ATTR_DPL0 \
            ((IDT_DESC_P << 7) + (IDT_DESC_DPL0 << 5) + IDT_DESC_32_TYPE)
#define IDT_DESC_ATTR_DPL3 \
            ((IDT_DESC_P << 7) + (IDT_DESC_DPL3 << 5) + IDT_DESC_32_TYPE)

#endif